Police say officers went to the home, in the 200 block of Mountain Road, and found the boy in his bedroom with the 10-week-old puppy, which appeared to have been stabbed in the throat and stomach. The boy and the puppy, which was found lying on its side at the foot of the 14-year-old's bed, were both covered in blood, police said. Next to the puppy was a kitchen knife.

Prosecutors announced new indictments Monday of Baltimore jail staff, the same day a top corrections official testified in the federal corruption trial of eight inmates and corrections officers about the difficulty containing misconduct in the system.